Lange, J. d. (1987). Mathematics, insight and meaning: Teaching, learning and testing of mathematics for the life and social sciences. Rijksuniversiteit Utrecht.
Citace podle Chicago (17th ed.)Lange, Jan de. Mathematics, Insight and Meaning: Teaching, Learning and Testing of Mathematics for the Life and Social Sciences. [Utrecht]: Rijksuniversiteit Utrecht, 1987.
Citace podle MLA (9th ed.)Lange, Jan de. Mathematics, Insight and Meaning: Teaching, Learning and Testing of Mathematics for the Life and Social Sciences. Rijksuniversiteit Utrecht, 1987.
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